Corn-planter.



P P' GROSBETTY. ATENTED APR' 14, 1903. CORN PLANTBR.

PLIOATION FILED MAY Z9 1902 N0 MODEL llllllllllllllllllllllll 'lll lIIIIIIIIIIlIIIIIIIIIIIIIIIIHIIII lllllllll UNITED STATT-2s M aTnN T Omron.

PETER GROSBETTY, OF MONROEVILLE, INDIANA, ASSIGNOR OF ONE-HALF TO EDWIN WEBER, OF MONROEVILLE, INDIANA.

Conn-manita.

SPECIFICATION forming part 0f Letters Patent No. 725,075, dated April 14, 19013.

Application tied May 29, 1902. Serial No. 109,547. (No model To all whom it' may concern:

Be it known that I, PETER GROSBETTY, a citizen of the United States, residing at Monroeville, in the county of Allen and State of Indiana, have invented a new and useful Corn- Planter, of which the following is a specification.

This invention relates generally to cornplanters, and more particularly to an improved mechanism for operating the dropper.

The object of the invention is to provide an improved mechanism which shall be quick and accurate in its operations; and with this object in view the invention consists in the novel features of construction and combination, all of which will be fully described hereinafter and pointed out in the claims.

In the drawings forming a part of this specification, Figure l is a perspective view illustrating my invention applied to a cornplanter. Fig. 2 is a sectional view, partly in elevation; and Fig. 3 is a detail view, partly in section, illustrating the pawl-and-ratchet mechanism for setting the dropping mechanism.

In carrying out my invention I employ a main frame A, supported at its forward end upon the runners B and at the rear by the ground-Wheels O, said ground-wheels being mounted uponl the end of the axle D and provided with ratchet-hubs E, so that the machine can be backed without operating the dropping mechanism. It will be understood that the pawl-and-ratchet mechanism in the wheel-hubs is so arranged as to rotate the shaft or axle D when the machine is moved forwardly.

A sprocket-wheel F is mounted upon the axle D and moves therewith, said sprocketwheel driving the chain G, which passes over a sprocket-wheel H, mounted upon the shaft I, journaledv upon the main frame, and the sprocket-wheel H carries a laterally-projecting pin K, which is adapted to engage an arm L, extending rearwardly from the shaft M, which enters seed boxes or hoppers N and carries the droppers at its ends. A short arm O projects upwa-rdly from the center of the shaft M, and connected thereto is a springrod P, said spring-rod being right-angled in shape, the horizontal portion being secured upon the main frame by means of staples P, and the extreme end is turned down and secured by means of a staple P2. The purpose of this spring-rod is to normally hold the arm L in a horizontal position ready to receive the pin K, so that ateach rotation of the sprocketwheel Hthe pin will operate the dropper-shaft M. A ratchet-disk Q,integral with a sleeve Q',

is arranged adjacent to the sprocket-wheel F, 6o

said sprocket carryinga spring-actuated pawl Q2,which is adapted to engage the ratchet-disk Q. The opposite end of the sleeve Q' has a ratchet-wheel Q3 formed thereon, which is adapted to be engaged by the pawl Q4, carried by the lever Q5, loosely mounted upon the axle and normally held inplace by the thumb-latch Q6 engaging the bar Q7. The purpose of this lever and pawl-.and-ratchet mechanism is to enable the operator to set the 7o machine so as to drop at any desired point in starting.

It will thus be seen that I provide an exceedingly cheap, simple, and efcient construction of operatingmechanism which can be used in connection with any form of dropping mechanism employing au oscillating shaft which enters the seed boxes or hoppers.

Having thus fully described my invention,

what I claim as new, and desire to secure by 8o Letters Patent of the United States, is-

1. The combination with the seed-hoppers, of a shaft extending therein, the arm extending rearwardly from said shaft, a sprocketwheel carrying a pin adapted to'engage the 85 said arm, an arm extending upwardly from the shaft, and a spring-rod connected to said arm and adapted to restore the rod to its normal position, and.` means for operating the sprocket-wheel carrying the pin, for the pur- 9o pose specitied.

2. The combination with the main frame, ofthe seed-hoppers, the shaftjournaled therein, the rearwardly and the upwardly extending arms carried by said shaft, a spring-rod right-angled in shape, one member ofwhich is rigidly secured to the main frame, the other member being pivotally connected 4to the upwardly-extending arm, a sprocket-wheel carrying a laterally-projecting pin, and means ion for rotating the said sprocket-Wheel, substantially as and for the purpose described.

3. The combination with asuitable Wheeled rearwardly from said rock-shaft and adapted Io frame,an axle revolublein one direction only, to be engaged by the pin on the sprocketa sprocket-Wheel on said axle, a second Wheel, and a Spring adapted to return said sprocket-wheel mounted in advance of the rook-shaft to its normal position after each 5 first-mentioned Wheel, a sprocket-chain, oonengagement between the pin and the arm.

meetingr said Wheels, a pin projecting from PETER GROSBETTY. the second sprocket-Wheel, hoppers mounted lVitnesses: on the side of the frame, a10ck-shaft ext-end- JOHN PURMAN,

ing between said hoppers, an arm extending WM. R. ALLEGER. 

